The result showed that CaO and SrO dissolve in CeO2 easier than MgO and BaO via an oxygen vacancy compensation mechanism.

• 结果说明,在碱土金属氧化物掺杂氧化铈的固溶反应中,氧空位缺陷是电荷补偿缺陷的首选形式,CaO和SrO较MgO和BaO易溶于CeO2;